I have an MBP with the latest OSX connected to the internet through ethernet. I've created a wi-fi network with the same name as the laptop and set the WPA2 password. I then enabled internet sharing in System Preferences.
I then booted another laptop also running the latest OSX and tried to connect to that network. The network was visible and I made sure I could see the password but my other laptop was unable to connect to the wi-fi network. Both machines are on the same desk.
How can I debug this? Console seems to show nothing relevant.